Experimental Study on Low-Fines Self-compacting Concrete Using Fly Ash Replacement

Smart Dynamic Concrete has a low cementitious material and can have self-compacting properties. Low-Fines Self-Compacting Concrete (LFSCC) was developed in this experimental investigation using cementitious content less than 380 kg/m3. To achieve economy and to create ecological concrete, by replacement of fly ash with cement which ranges from 10 to 50%. The fresh flow (flowable) properties of LFSCC were investigated as per EFNRAC specifications. Compressive strength, strength for flexural, and strength for splitting tensile are evaluated as per Indian standards specifications. From experimental results, all the mix combinations satisfied ENFRAC specifications in the fresh state of LFSCC. The 32.12 MPa highest compressive strength was observed when fly ash was replaced by 30%. The flexural strength and the splitting tensile strength of the LFSCC decreased as the fly ash content increased. Overall findings suggest that LFSCC can be developed for everyday concrete applications by incorporating fly ash.